Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ConnectorsArea: what it touches
Internal ChangesKind: in v2.1.323,
Internal ChangesSection of the release
Unclear What the yes or no value for each tool changes in practice is not known.
What
Claude Code has a built-in MCP server for the Claude app whose tools it handles specially. MCP servers are add-ons that give Claude Code extra tools. Which of those tools were held back or always loaded used to come from a fixed list and the remote switch tengu_spicy_pixel.
Both are now replaced. Each tool name now has its own yes-or-no value in a table, and a new remote switch, tengu_mellow_drawer, controls it. Claude Code only treats a matching tool this way when that switch is on, and it is off unless Anthropic's servers switch it on. In a reading taken before this release, it had just turned on for this site's account.
Why
This changes which switch governs how the Claude app's own tools are treated, so their behaviour can now be adjusted tool by tool.
Read from
Feature flag
tengu_mellow_drawerOff by default, switched on for this account
The shipped code defaults this off, and the flag server returned on for the one account this site reads on this version. That is the reading that makes the entry above worth a second look, and it still says nothing about your account.
This account: on · anonymous baseline: on · compiled default in v2.1.323: off
These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.
